Add internal operation that converts a growable list to a fixed list.

runtime/vm/bootstrap_natives.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_BOOTSTRAP_NATIVES_H_
 #define VM_BOOTSTRAP_NATIVES_H_
 
 #include "vm/native_entry.h"
 
 // bootstrap dart natives used in the core dart library.
@@ skipping 318 matching lines @@
   V(TypedefMirror_referent, 1)                                                 \
   V(TypedefMirror_declaration, 1)                                              \
   V(VariableMirror_type, 2)                                                    \
   V(GrowableList_allocate, 2)                                                  \
   V(GrowableList_getIndexed, 2)                                                \
   V(GrowableList_setIndexed, 3)                                                \
   V(GrowableList_getLength, 1)                                                 \
   V(GrowableList_getCapacity, 1)                                               \
   V(GrowableList_setLength, 2)                                                 \
   V(GrowableList_setData, 2)                                                   \
+  V(GrowableList_toFixedLength, 1)                                             \

[Ivan Posva, 2014/02/06 16:57:00]

The native is not on the class GrowableList, maybe it should be?

[Lasse Reichstein Nielsen, 2014/02/07 12:55:25]

I don't intend to make the method public. It behaves differently wrt. the
growable array in the VM and dart2js, and that is fine because we only use it in
cases where the growable array is discarded.
If we exposed it to users, we would want it to behave consistent behavior.

Can I put it on GrowableList and make it visible in other internal libraries
(like dart:_internal), but not to user libraries?

   V(WeakProperty_new, 2)                                                       \
   V(WeakProperty_getKey, 1)                                                    \
   V(WeakProperty_getValue, 1)                                                  \
   V(WeakProperty_setValue, 2)                                                  \
   V(Uri_isWindowsPlatform, 0)                                                  \
 
 class BootstrapNatives : public AllStatic {
  public:
   static Dart_NativeFunction Lookup(Dart_Handle name,
                                     int argument_count,
                                     bool* auto_setup_scope);
 
 #define DECLARE_BOOTSTRAP_NATIVE(name, ignored)                                \
   static void DN_##name(Dart_NativeArguments args);
 
   BOOTSTRAP_NATIVE_LIST(DECLARE_BOOTSTRAP_NATIVE)
 
 #undef DECLARE_BOOTSTRAP_NATIVE
 };
 
 }  // namespace dart
 
 #endif  // VM_BOOTSTRAP_NATIVES_H_